Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-19 | 225/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.18 (741.1) | 24.97 (634.3) | -4.2 (-106.8) -14.4% |
| Width inches (mm) | 9.25 (235) | 8.86 (225) | -0.39 (-10) -4.3% |
| Circum. inches (mm) | 91.66 (2328.23) | 78.45 (1992.71) | -13.21 (-335.52) -14.4% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 3.99 (101.25) | -1.1 (-28) -21.7% |
| Revolutions per mile (km) | 691.23 (429.51) | 807.61 (501.83) | 116.39 (72.32) 16.8% |
225/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.12 mph (27.55 km/h) |
| 25 mph (40.23 km/h) | 21.4 mph (34.44 km/h) |
| 30 mph (48.28 km/h) | 25.68 mph (41.32 km/h) |
| 35 mph (56.33 km/h) | 29.96 mph (48.21 km/h) |
| 40 mph (64.37 km/h) | 34.24 mph (55.1 km/h) |
| 45 mph (72.42 km/h) | 38.52 mph (61.98 km/h) |
| 50 mph (80.47 km/h) | 42.79 mph (68.87 km/h) |
| 55 mph (88.51 km/h) | 47.07 mph (75.76 km/h) |
| 60 mph (96.56 km/h) | 51.35 mph (82.65 km/h) |
| 65 mph (104.61 km/h) | 55.63 mph (89.53 km/h) |
| 70 mph (112.65 km/h) | 59.91 mph (96.42 km/h) |
| 75 mph (120.7 km/h) | 64.19 mph (103.31 km/h) |
| 80 mph (128.75 km/h) | 68.47 mph (110.19 km/h) |
| 85 mph (136.79 km/h) | 72.75 mph (117.08 km/h) |
| 90 mph (144.84 km/h) | 77.03 mph (123.97 km/h) |
| 95 mph (152.89 km/h) | 81.31 mph (130.86 km/h) |
| 100 mph (160.93 km/h) | 85.59 mph (137.74 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2055 | 2388 | 2571 | 2685 | 2807 | 2895 | 2991 | 3105 | 3262 | 3420 | 3594 | 3734 | 3988 | 4268 | 4487 | 4626 | 4705 | 4994 | 5396 | 6271 |
Better Fuel Economy Factory Ratios Increased Power
